LENOVO THINKPAD T61 CORE 2 DUO T8100 @ 2.1 GHZ, 1GB RAM, NO HDD/OS (PARTS) – ASA College: Florida
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide
Tutorial: How to upgrade ram in a T61 Thinkpad - YouTube
Lenovo T61 laptop 14" Core 2 Duo 2.40GHz 2GB RAM 160GB WEBCAM BLUETOOTH 1440x900 | eBay
LENOVO THINKPAD T61 @ CORE 2 DUO T8100, 2.1 GHZ, 3GB RAM, 250GB HDD, W/ VISTA – ASA College: Florida
T61p 4GB RAM Core 2 Duo Lenovo ThinkPad Used 160GB HDD Laptop
Lenovo ThinkPad T61 15in Core 2 Duo T8100 2.10GHz 2GB RAM 1TB HDD Win 10 Pro | eBay
IBM Lenovo Thinkpad T400, T61 Laptop 1.8 GHz 4 GB Ram Windows XP pro SP3 WiFi – ASA College: Florida
CMS 8GB (2X4GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with IBM Lenovo® Thinkpad T61, T61P Ddr2 Pc5300 Sodimm - B116 at Amazon.com
2GB Memory RAM Upgrade for the Lenovo Thinkpad R61 Series, T60 Series, T61 Series, X60 Series and X61 Series Laptops (DDR2-667, PC2-5300, SODIMM) at Amazon.com
Lenovo Thinkpad T61
CMS 8GB (2X4GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with IBM Lenovo® Thinkpad T61, T61P Ddr2 Pc5300 Sodimm - B116 at Amazon.com
T61 - Wiki
IBM Thinkpad T61 RAM Replacement - iFixit Repair Guide